I have a servlet that was running fine until a few days ago. But the only thing that I\'ve changed is the nexus repo I\'m using for maven. I\'m running the servlet via mvn j
I would start with comparing the ear / war file created before and after you changed your pom.xml. This should lead you to jar files that were changed. Assumming everything is open source, download sources from maven repo and compare them. \
Edit: JRegex is a java library with Perl regexp support. Perhaps changing maven repo caused downloading other versions of your dependencies, and they have some optional dependency to JRegex. (You should be able to check that).
Try adding JRegex to your dependencies and see what happens. (Note this whould be a workaround if you're in production and in a hurry)